Power Mac G4 Power Supply Exchange
Displeased with the sound coming from your Power Mac (Mirrored Drive Doors)?
Apple has initiated a Power Supply Exchange Program:
The Power Supply Exchange Program is not a repair option for power supplies or system fans that have failed or are defective. Its purpose is solely to offer owners of Power Mac G4 (Mirrored Drive Doors) computers the option to reduce the noise produced by their power supplies and system fans by taking advantage of recent improvements to these components.
Top Rated Comments
The things I've noticed different about the MD G4s and the FW800 ones for cooling are:
Different main fan with collar that almost touches the heat sink. (sp?)
Lower wattage PSU with different, quieter fans.
High efficiency heat sink (more surface area).
More holes in the back, a regular pattern, including in the PCI covers.
Different air intake design in the lower front.
Sorry, but I couldn't help but comment on the installation by service centers statement.